BATTERIES & HOME BACKUP

Home batteries and other means of home power backup, such as generators, are an excellent option for homeowners who deal with frequent power outages and blackouts, or are billed at a higher rate for power used at certain times of day. These devices allow homeowners to store energy produced by their solar panels and use it at a later time, typically either when the grid is down or when panels aren’t producing power. 

How Home Batteries Work

HOW HOME BATTERIES WORK

Home batteries are a great way to store the energy generated by your solar panels to use strategically, either when your panels aren’t producing power, during a grid outage, or when your utility charges higher rates. Home batteries are charged with energy produced by solar panels, and can be discharged later to power your home. 

Home batteries have sophisticated discharge management capability, which allows homeowners to set preferences for the times and circumstances in which to use stored energy, and the devices and appliances to power in those circumstances. 

Solar panels produce power for use in the home.

Solar panels convert photons from sunlight into DC power, which is converted into usable AC power by the inverter.

Excess energy produced charges home battery.

Power produced by solar panels that is not used to power the home is stored in the home battery.

Energy stored in battery used to power the home.

Batteries are discharged to power the home. This can be at night, during grid outages, or at times when utility rates are higher.

How long can a battery power my home?

Depends on the battery capacity.

Home battery systems can be designed to store enough energy to power a home for several days - but home batteries can be expensive, so many homeowners opt for enough storage to power only essential appliances or for
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Can I use a home battery to go off-grid?

Technically, yes - but we typically don't recommend it.

Most homeowners see the most benefit from home batteries when used in conjunction with solar panels and grid connection, which ensures flexibility and reliability.

Why Install A HOME BATTERY?

STORE ENERGY FOR LATER USE

A home battery allows you to store energy produced by your solar panels for use at night, on cloudy days, and at other times when your panels aren’t producing power.                                                                       

AVOID POWER OUTAGES

Storing energy in a home battery keeps you prepared for power outages and blackouts. Many solar systems are also capable of recharging batteries while the grid is down, ensuring power during extended outages. 

LOWER YOUR ELECTRICITY BILLS

Home batteries are a great way to manage energy usage by time of day – ideal for energy billing structures that charge a premium during specific time windows. 

MANAGE ENERGY SUCKERS

Battery systems can also be set to supply power to certain high-usage appliances and devices, minimizing extra charges under demand charge billing structures.                                    

Types of HOME BACKUP

Whole Home vs. Partial Home Backup

There are two main approaches to home backup – whole and partial. The concepts are fairly straightforward – whole home backup aims to provide enough backup capacity to power “business as usual” home operations for a certain period of time, while partial home backup identifies certain critical devices and appliances to back up. 

Whole home backup can be achieved for most homeowners, but it is typically a very large investment. Partial home backup is much more approachable for most homeowners, and ensures that the most important aspects of your home have sufficient power – allowing for increased comfort and convenience during outages and blackouts. 

Home Batteries

Home batteries are large batteries connected to a solar panel system, which store power generated by panels for future use

Generators

Another common method to back up home power is the use of generators. Generators use natural gas to generate power independently of the utility grid.

WHAT TO LOOK FOR IN A HOME BATTERY

Capacity

The first factor to consider in a home battery is the storage capacity. Is your goal partial home backup or whole home backup? How much energy do you consume? These considerations will help you determine your ideal capacity.

Manufacturer's Warranty

Evaluate the length and coverage of the manufacturer's warranty for any home battery you consider. Most reputable brands offer a 10 year manufacturer's warranty against defects and malfunctions.

Compatibility

If you already have a solar installation, ensure your home battery is compatible with your panels and inverter. Know whether or not your battery system will be capable of charging while the grid is down.

Get the best HOME BACKUP EQUIPMENT on the market with Zenernet

Zenernet works with the most trusted brands and manufacturers in home backup to offer every homeowner the best solution for their unique situation. Our expert energy consultants will help you determine the most important factors to consider and identify the products best suited for your installation. See below for some of the home backup brands and manufacturers we work with. 

How much should I pay for a home battery?

The right price to pay for solar panels is different for every homeowner, and depends on a number of factors. Determining the right price starts with an evaluation of energy usage and billing structure, which will help determine the ideal strategy and capacity to design the battery system for. The next consideration is whether to design for partial- or whole-home backup. 

This thought process will allow you to identify the home backup solution that makes the most sense for you. 

HOME BATTERY INCENTIVES

Federal Solar Investment Tax Credit (ITC)

The biggest active home battery incentive in the United States - allows homeowners to claim a tax credit of 26% of the cost of any new home battery installation project. The ITC was originally slated to step down to 22% at the end of 2020, but was extended at the current value through 2022.

State & Local Incentives

Many states, cities, and utilities offer incentives for homeowners to install home batteries. Many of these incentives are in the form of tax credits or rebates. Others are capacity-based incentives, which compensate homeowners based on the amount of battery capacity installed. Our expert energy consultants can help you find and take advantage of any eligible incentives in your area.

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